ppmtv

Ppmtv User Manual(0) Ppmtv User Manual(0)

NAME

ppmtv - make a PPM image look like taken from an American TV

SYNOPSIS

ppmtv dimfactor
[ppmfile]

DESCRIPTION

This program is part of Netpbm(1).
ppmtv reads a PPM image as input and dims every other row of image data
down by the specified dim factor. This factor may be in the range of
0.0 (the alternate lines are totally black) to 1.0 (original image).
This creates an effect similar to what I’ve once seen in the video clip
’You could be mine’ by Guns’n’Roses. In the scene I’m talking about
you can see John Connor on his motorbike, looking up from the water
trench (?) he’s standing in. While the camera pulls back, the image
gets ’normal’ by brightening up the alternate rows of it. I thought
this would be an interesting effect to try in MPEG. I did not yet check
this out, however. Try for yourself.